1. Analytic and Translational Genetics Unit, Massachusetts General Hospital, Boston, MA 02114, USA.
2. Medical and Population Genetics, Broad Institute of Massachusetts Institute of Technology and Harvard, Cambridge, MA 02142, USA.
3. Program in Biological and Biomedical Sciences, Harvard Medical School, Boston, MA 02115, USA.
4. School of Paediatrics and Child Health, University of Sydney, Sydney, New South Wales 2006, Australia.
5. Institute for Neuroscience and Muscle Research, Kids Research Institute, The Children’s Hospital at Westmead, Sydney, New South Wales 2145, Australia.
6. Neuromuscular and Neurogenetic Disorders of Childhood Section, Neurogenetics Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892, USA.
7. Division of Genetics and Genomics, Manton Center for Orphan Disease Research, Boston Children’s Hospital, Harvard Medical School, Boston, MA 02115, USA.
8. Division of Pediatric Neurology, Department of Pediatrics, University of Florida College of Medicine, Gainesville, FL 32610, USA.
9. Dubowitz Neuromuscular Centre, University College London Institute of Child Health, London WC1N 1EH, U.K.
10. Division of Neurology, Hospital for Sick Children, Toronto, Ontario M5G 1X8, Canada.
11. Department of Neurology, University Hospitals Leuven and University of Leuven (Katholieke Universiteit Leuven), Leuven 3000, Belgium.
12. Department of Diagnostic Genomics, PathWest Laboratory Medicine, Perth, Western Australia 6009, Australia.
13. Harry Perkins Institute of Medical Research, University of Western Australia, Perth, Western Australia 6009, Australia.
14. John Walton Muscular Dystrophy Research Centre, MRC (Medical Research Council) Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Newcastle University, Newcastle upon Tyne NE1 3BZ, U.K.
15. Murdoch Childrens Research Institute, Royal Children’s Hospital, Parkville, Melbourne, Victoria 3052, Australia.